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Equivalent & Substitute Parts for 1050A3 Neon Panel Indicator
Part Overview
The 1050A3 is a neon panel indicator manufactured by Visual Communications Company (VCC) designed for amber status indication in panel-mounted applications. Operating at 105V to 125V AC, this component features wire leads with a 4.6-inch length and a round 0.50-inch panel cutout configuration.
The 1050A3 carries a "Not For New Designs" product status designation. This classification necessitates identification of functionally equivalent alternatives for ongoing production requirements, maintenance applications, and new design implementations where amber panel indication is required.
Substiute Parts
Key Parameters
| Parameter | Value | Significance for Substitution |
|---|---|---|
| Lamp Type | Neon | Determines light source technology and operational characteristics |
| Lamp Color | Amber | Specifies light emission wavelength for visual indication |
| Lens Color | Amber | Ensures color consistency with lamp output |
| Voltage Rating | 105V ~ 125V AC | Critical for direct electrical compatibility |
| Panel Cutout Shape | Round | Determines mechanical fit in panel aperture |
| Panel Cutout Dimensions | 0.50" (12.70mm) | Specifies exact panel mounting hole size |
| Lens Style | Round with Domed Top | Defines visual appearance and light distribution |
| Termination Style | Wire Leads - 4.6" (116.84mm) | Specifies electrical connection method and lead length |
| RoHS Status | ROHS3 Compliant | Ensures regulatory compliance for hazardous substance restrictions |
Substitute Part Grouping Explanation
Substitution of the 1050A3 is based on maintaining functional equivalence across the following critical parameters:
Mechanical Compatibility: Panel cutout shape (round) and dimensions (0.50 inch) must remain identical to ensure physical fit without panel modification.
Electrical Compatibility: Voltage rating must support the 105V to 125V AC operating range. Termination style (wire leads at 4.6 inches) must match to maintain circuit integration without rewiring.
Functional Equivalence: Lamp color (amber) and lens color (amber) must be preserved to maintain the intended visual indication function. Lens style (round with domed top) should remain consistent for aesthetic and optical uniformity.
Regulatory Compliance: Substitute parts must maintain ROHS3 compliance and REACH unaffected status to satisfy environmental and safety requirements.
The 1092A3-125VAC qualifies as a substitute based on these parameters. While it represents a technology transition from neon to LED, it maintains all mechanical, electrical, and functional compatibility requirements.
Parameter Comparison
| Parameter | 1050A3 (Main Part) | 1092A3-125VAC (Substitute) | Compatibility Status |
|---|---|---|---|
| Manufacturer | Visual Communications Company - VCC | Visual Communications Company - VCC | Identical |
| Lamp Type | Neon | LED | Different technology, same function |
| Lamp Color | Amber | Amber | Compatible |
| Lens Color | Amber | Amber | Compatible |
| Lens Transparency | Not specified | Diffused | Substitute provides diffused optics |
| Voltage Rating | 105V ~ 125V AC | 125V AC | Compatible (substitute covers upper range) |
| Current | Not specified | 25mA | Substitute specifies current draw |
| Panel Cutout Shape | Round | Round | Compatible |
| Panel Cutout Dimensions | 0.50" (12.70mm) | 0.50" (12.70mm) | Compatible |
| Lens Style | Round with Domed Top | Round with Domed Top | Compatible |
| Termination Style | Wire Leads - 4.6" (116.84mm) | Wire Leads - 4.6" (116.84mm) | Compatible |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Compatible |
| REACH Status | REACH Unaffected | REACH Unaffected | Compatible |
| Product Status | Not For New Designs | Active | Substitute is active for new designs |
Engineering Selection Recommendations
For Existing Designs: The 1050A3 remains available with 816 units in stock. Continued use is supported for maintenance and replacement applications in existing systems.
For New Designs: The 1092A3-125VAC is the recommended selection. This substitute carries "Active" product status, ensuring long-term availability and design support. With 1327 units in stock, supply continuity is established.
Regulatory Compliance: Both parts maintain ROHS3 compliance and REACH unaffected status. No compliance barriers exist for either component in regulated markets.
Technology Transition: The substitution represents a shift from neon to LED technology. Both components deliver amber indication through identical mechanical interfaces (0.50-inch round panel cutout, 4.6-inch wire leads). The LED substitute provides specified brightness (13000mcd) and current consumption (25mA), enabling precise circuit design calculations.
Voltage Consideration: The 1092A3-125VAC operates at 125V AC, covering the upper range of the 1050A3 specification (105V ~ 125V AC). Circuit designs operating at the lower end of the 105V range require verification that 125V operation is acceptable for the application.
Frequently Asked Questions (FAQ)
Q: Can the 1092A3-125VAC directly replace the 1050A3 in existing panel assemblies?
A: Yes. Both components share identical panel cutout dimensions (0.50 inch round), lens style (round with domed top), and termination configuration (4.6-inch wire leads). No panel modification is required for physical installation.
Q: What is the primary difference between these two components?
A: The 1050A3 uses neon lamp technology, while the 1092A3-125VAC uses LED technology. Both produce amber indication through identical mechanical interfaces. The LED substitute provides specified brightness (13000mcd) and current consumption (25mA).
Q: Is the 1092A3-125VAC suitable for applications currently using the 1050A3?
A: The 1092A3-125VAC is suitable for applications where 125V AC operation is acceptable. The 1050A3 operates across 105V to 125V AC; the substitute operates at 125V AC. Applications requiring operation below 125V require circuit verification.
Q: Are there any compliance differences between the two parts?
A: No. Both components are ROHS3 compliant and REACH unaffected. No regulatory barriers exist for substitution in compliant applications.
Q: Why is the 1050A3 marked "Not For New Designs"?
A: This designation indicates the component is in mature or declining production status. The 1092A3-125VAC, with "Active" status, is the recommended choice for new design implementations.
Q: What is the packaging difference between these parts?
A: The 1050A3 is supplied in bag packaging; the 1092A3-125VAC is supplied in bulk packaging. This difference affects inventory management but does not impact functional compatibility.
Q: Can the 1092A3-125VAC operate at voltages below 125V AC?
A: The 1092A3-125VAC is rated for 125V AC operation. Operation outside this specification requires verification against the component's electrical design parameters.
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